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8 Series - E31 (1989 - 1999)

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  #1  
Old 10-30-2013, 03:05 PM
Jolo Jolo is offline
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Location: Hilton Head, SC
 
Join Date: Jan 2006
Posts: 20
Mein Auto: 2002 540 IT; 1997 840 CI
Front and Rear Windows Not Working

I have searched all the posts but cannot find a similar instance of both driver front and rear windows suddenly not functioning. My 840 ci window dropped an inch when I opened the door, but did not move up when I got in and closed the door. The windows remains open a crack and will not move when the window switch is operated. Ironically, both front and rear window are not operating, while both windows on the passenger side do operate normally. I do not see any fuses that are dedicated to the windows, and all fuses are in tact anyway.

Any ideas out there before I pull the door apart? And any hidden screws or clips that will prevent me from removing the inside door panel? Hopefully it will be as easy as my 5 series door panel removal.

Thanks in advance.

Joe
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  #2  
Old 10-30-2013, 10:55 PM
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TerryY TerryY is offline
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Location: Woodland Washington
 
Join Date: Jul 2003
Posts: 670
Mein Auto: BMW '95 840
Ask over at http://forums.bimmerforums.com/forum...ries-%28E31%29

There are only a few 8 owners here and Many Many over there. Because they all quit working I would bet on the general module. But first have you tried the passenger door from the passenger side switch? The switches are data linked rather than direct wired.
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  #3  
Old 11-04-2013, 12:08 PM
DavoTX DavoTX is offline
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Location: Madrid
 
Join Date: Nov 2013
Posts: 3
Mein Auto: F30 335i M '94 BMW 840ci
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Quote:
Originally Posted by Jolo View Post
I have searched all the posts but cannot find a similar instance of both driver front and rear windows suddenly not functioning. My 840 ci window dropped an inch when I opened the door, but did not move up when I got in and closed the door. The windows remains open a crack and will not move when the window switch is operated. Ironically, both front and rear window are not operating, while both windows on the passenger side do operate normally. I do not see any fuses that are dedicated to the windows, and all fuses are in tact anyway.

Any ideas out there before I pull the door apart? And any hidden screws or clips that will prevent me from removing the inside door panel? Hopefully it will be as easy as my 5 series door panel removal.

Thanks in advance.

Joe
Is it just the windows or any of the other electrical failing as well? I had a similar issue sometime back and after trying every trick in the book I finally took out the General Module and had an electrical engineer check out the circuits - turned out there were 3 dead capacitors on the board - once replaced the power windows started functioning again. Might be worth a shot!
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  #4  
Old 11-09-2013, 09:06 AM
Wuffer Wuffer is offline
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Location: BC Canada
 
Join Date: Oct 2009
Posts: 8
Mein Auto: 91 850i, 97 328iC
Windows are controlled by fuses in the trunk, drivers side. Dont recall which fuse controls drivers side but should be obvious.
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